And he knew the necessity of making no error, with Cassidy in there, gripping the butt of his gun.
Suddenly he heard a movement.

A man's steps, subdued and yet distinct, were moving from the window toward the door.

Half way they paused, and turned to one of the windows looking westward.

But it was evident the watcher was not expecting his game from that direction, for after a moment's silence he returned to the window through which he could see the trail.

This time Jolly Roger was sure.